Arrangement of motor-engine parts for bicycles.



F. E. PASCAL. ARRANGEMENT OF MOTOR ENGINE PARTS FOR BICYCLES.

APPLICATION FILED AUG-4| 1914.

Patented Apr. 11, 1916.

2 SHEETS-SHEET I.

Fig.1

NESSES F.-E. PASCAL.

ARRANGEMENT 0F MOTORENGINE PARTS FOR BICYCLES. APPLICATION FILED AUG-4|i914.

1, 179 138. Patented Apr. 11,1916.

2 SHEETS-SHEET 2- Fig.4

WITNESSES lNVENTOR FERD/NRND ETIEVNNE F'Ascfil- By 'f'raRzvEVS the rearaxle or to the front or rear forks FERDINAND ETIENNE PASCAL, oE'sT.cLo'UD, FRANCE.

ARRANGEMENT or MoToE ENemE PARTS FOR BIcYcLEs.

'Motor-Engine Parts for Bicycles, of which the following is aspecification.

This invention has for its objectan arrangement of motor engine partsadapted to be placed either in the front or at the rear of a bicyclewithout it being necessary to materially modify the bicycle structure.

With this object the-mot0r is carriedby one or several horizontal orcurved arms secured either to the steering wheel frame or to the mainframe at the rear of the machine. These horizontal or curved arms haveassociated therewith a fork: the branches of which may be secured eitherto the front or of the bicycle frame. By means of this a1- rangement themotor parts are carried either in frontof or behind the bicycle and itsuffices to tighten a few nuts in orderto secure the motor in position.

Three methods of mounting the motor,

here shown as of therotary type, are shown in the annexed drawing inwhich- Figure 1 is a broken elevation of a bicycle showing the motormounted on the steering wheel frame; Fig. 2 is a similar View, showingthe motor mounted on the main frame to the rear of the seat; Fig. 3 is asimilar view showing the motor carried behind the rear wheel of themachine; and Fig. 4 is a section on line' 44, Fig. 3, showing on a largescale the transmission of the drive.

Referring to the drawings and particularlyto Fig. l,the rotary motor Ais mounted at the end of the horizontal arm B which is fixed at itsother extremity to a collar C clamped on the pillar D of the steeringhandle of the machine. The arm B is also fast with a fork E the legs ofwhich are mounted on the axle of the front wheel F. The motor A isprovided with a pulley a over which passes a belt G which runs over thepulley f carried by the wheel F. A guide pulley e mounted on the fork Ekeeps the belt in contact with a large peripheral extent on the pulley fand incidentally may serve as a ten sion roller and guide' On the arm 'Bare mounted. the ignition magneto H, the spirit tank, I, the carbureter,the throttle, etc.

Specification of Letters Patent.

Patented A r. '11, 1916.

Application filed August 4, 1914. Serial N 0. 854,995.

'A protective casing surrounds the motor.

According to the form shown in Figs. 3 and 4 the rotary motor A ismounted on the head of afork E the legs e of which engage the rear axleL or some suitable part of the frame. The whole mass is held in thisposltion by means of an arm M which overlies the rear wheel and isfastened to some point at the upper part of the frame. This arm M whichcarries'the tank, the carbureter etc., may be furnished with a mud guardhaving sides M which are shown in dotted lines on the drawing.

The detail of the drive of the back wheel is shown in .Fig. 4. Thisdrive consists of. a chain G passing over a pinion K keyed on the hub ofthe rear wheel K and a second pinion K keyed on an intermediate shaft Nmounted in ball bearings on the fork E. The drive of the shaft N by themotor A is effected by bevel pinions P and P The pinion P is fast to themotor A and the pinion P is free on the shaft N. The connection of thepinion P and the shaft N is insured by a cone clutch. For this purposethe pinion P forms a 'female cone 1?. The male cone p slides on a longkey on the shaft N. A compression springR together. A clutch fork Sfixed to a shaft 8, which is rotatably mounted on the fork E, andretained in a circular channel 70 in the male cone 9 provides means fordisengaging the two cones. This fork may be controlled in any suitableway from a con-.

:venient part of the machine. It is obvious that these arrangements ofthe motor parts have only been given by way of example.

The motor instead of being rotary could be fixed. The drive instead ofbeingefiected by belt as shown in Figs. 1 and 2, could be accomplishedby chain, friction, etc. In the same way in the form shown in Fig. 3 thedrive by'chain could be replaced by a belt drive.

Having. now particularly described and ascertained the nature 'of thesaid invention 10&

Q v v 1,17a,1se

and in what manner the same is to be performed I declare that what Iclaim is 1. In a. motor cycle, a rotary motor, a frame therefor andmeans for readily mounting-the same on the frame of an ordinary bicyclewith the axis of the motor in the plane of the bicycle wheels, incombination with a drivin connection between the motor and one of saidwheels, said connection comprising a countershaft geared to the motorand a clutch interposed between said shaft and the driven wheel.

2. In a motor cycle, a rotary motor, a

frame therefor and means for readily mounting the same on the frame ofan ordinary bicycle with the axis of the motor in the plane of thebicycle wheels, in combination with a driving connection between themotor and one of said wheels, said connection comprising a countershaftgeared to the motor and parallel to the axle of the driven wheel and aclutch interposed between said shaft and the wheel. I

3. In a motor cycle, a rotary motor, a frame therefor and means forreadily mounting the same at the rear of the frame of an ordinarybicycle with the axis of the motor in the plane of the bicycle wheels,together with a rear wheel mud guard carried by said frame.

4. In a motor cycle, a rotary. motor, a frame therefor and means forreadily mounting the same on the frame of an ordinary bicycle, a bevelWheel fast with. the motor, a countershaft and driving connectionsthereon to one of the bicycle wheels, a bevel wheel on said countershaftgearing with said first mentioned bevel wheel, and a clutch for esframetherefor comprising a fork straddling the rear Wheel and a suspensionmember extending from the head of the fork to the upper part of thebicycle frame and serving to hold the motor behind the rear wheel andsubstantially at the level of its axis, together with a mud guardcarried by said suspension member and overlying the rear wheel.

7 In a motor cycle, a rotary motor, a frame therefor comprising a forkstraddling the rear wheel and a suspension member extending from thehead of the fork to the upper part of the bicycle frame and serving tohold the motor behind the rear wheel and substantially at the level ofits axis, together with a mud guard and fuel tank carried by saidsuspension member and overlying the rear wheel.

lnatestimony whereof, I have signed my name to this specification, inthe presence of two. subscribing witnesses.

V FERDINAND ETIENNE PASCAL.

Witnesses EUGENE Lnoms, PIERRE LEJEUNE.

